When designing custom portable electronics, Arduino prototypes, robotics platforms, or LED lighting rigs powered by dual lithium-ion cells, securing your batteries safely while allowing easy power control is essential. Flimsy battery setups lead to intermittent connections and messy wiring. The 218650 7.4V Battery Holder with On/Off Switch provides a neat, reliable containment solution, holding two 18650 cells in series to deliver a stable 7.4V nominal output complete with an integrated rocker switch.
Series Connection Output: Connects two 3.7V 18650 lithium-ion batteries in series to produce a combined 7.4V nominal power supply.
Integrated On/Off Rocker Switch: Convenient built-in power switch lets you cut or enable power instantly without disconnecting wires.
Pre-Wired Lead Wires: Equipped with flexible, color-coded red and black wire leads for effortless soldering or breadboard integration.
Sturdy Plastic Enclosure: Impact-resistant molded plastic casing features tight spring contacts to lock batteries securely in place even during movement.
| Feature | Specification |
| Product Type | 2-Slot 18650 Battery Holder with Switch |
| Cell Configuration | 2 x 18650 Lithium-Ion Cells (Series Connection) |
| Nominal Voltage Output | 7.4V DC |
| Switch Type | Built-In On/Off Rocker Switch |
| Connection Type | Pre-soldered Red (+) and Black (-) Wire Leads |
| Application | DIY Electronics, Arduino Projects, LED Lights, Robotics |
DIY Maker & Robotics Projects: Ideal power source enclosure for small robotic chassis, microcontroller boards, and custom sensor modules.
Portable LED Lighting: Powers portable work lights, costume electronics, and custom test rigs safely.
Note to customers: This is a battery holder case only; 18650 lithium-ion batteries are sold separately!
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